111012216 has 32 divisors (see below), whose sum is σ = 317178240. Its totient is φ = 31717728.

The previous prime is 111012199. The next prime is 111012221. The reversal of 111012216 is 612210111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111012195 and 111012204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330226 + ... + 330561.

It is an arithmetic number, because the mean of its divisors is an integer number (9911820).

Almost surely, 2^111012216 is an apocalyptic number.

It is an amenable number.

111012216 is an abundant number, since it is smaller than the sum of its proper divisors (206166024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111012216 is a wasteful number, since it uses less digits than its factorization.

111012216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660803 (or 660799 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 111012216 is about 10536.2334826066. The cubic root of 111012216 is about 480.6071830000.

Adding to 111012216 its reverse (612210111), we get a palindrome (723222327).

The spelling of 111012216 in words is "one hundred eleven million, twelve thousand, two hundred sixteen".